<template>
  <div id="app">
  <mt-button @click.native="handleClick">按钮</mt-button>
 </div>
 </template>
  
 <script>
 export default{
  el: '#app',
  methods: {
   handleClick: function() {
    this.$toast('Hello world!');
   }
  }
 }
 </script>
  
 <style>
 </style>